Tektronix TLA7PG2 User manual

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Service Manual
TLA7PG2
Pattern Generator and Probes
071-0714-01
This document applies to firmware version 1.00
and above.
Warning
The servicing instructions are for use by qualified
personnel only. To avoid personal injury, do not
perform any servicing unless you are qualified to
do so. Refer to all safety summaries prior to
performing service.
www.tektronix.com

Copyright ©Tektronix, Inc. All rights reserved. Licensed software products are owned by Tektronix or its suppliers and
are protected by United States copyright laws and international treaty provisions.
Use, duplication, or disclosure by the Government is subject to restrictions as set forth in subparagraph (c)(1)(ii) of the
Rights in Technical Data and Computer Software clause at DFARS 252.227-7013, or subparagraphs (c)(1) and (2) of the
Commercial Computer Software -- Restricted Rights clause at FAR 52.227-19, as applicable.
Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supercedes
that in all previously published material. Specifications and price change privileges reserved.
Tektronix, Inc., 14200 SW Karl Braun Drive, Beaverton, OR 97077
TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.

WARRANTY
Tektronix warrants that this product will be free from defects in materials and workmanship for a period of one (1) year from
the date of shipment. If any such product proves defective during this warranty period, Tektronix, at its option, either will
repair the defective product without charge for parts and labor, or will provide a replacement in exchange for the defective
product.
In order to obtain service under this warranty, Customer must notify Tektronix of the defect before the expiration of the
warranty period and make suitable arrangements for the performance of service. Customer shall be responsible for packaging
and shipping the defective product to the service center designated by Tektronix, with shipping charges prepaid. Tektronix
shall pay for the return of the product to Customer if the shipment is to a location within the country in which the Tektronix
service center is located. Customer shall be responsible for paying all shipping charges, duties, taxes, and any other charges
for products returned to any other locations.
This warranty shall not apply to any defect, failure or damage caused by improper use or improper or inadequate maintenance
and care. Tektronix shall not be obligated to furnish service under this warranty a) to repair damage resulting from attempts
by personnel other than Tektronix representatives to install, repair or service the product; b) to repair damage resulting from
improper use or connection to incompatible equipment; or c) to service a product that has been modified or integrated with
other products when the effect of such modification or integration increases the time or difficulty of servicing the product.
THIS WARRANTY IS GIVEN BY TEKTRONIX WITH RESPECT TO THIS PRODUCT IN LIEU OF ANY
OTHER WARRANTIES, EXPRESSED OR IMPLIED. TEKTRONIX AND ITS VENDORS DISCLAIM ANY
IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
TEKTRONIX’ RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE AND
EXCLUSIVE REMEDY PROVIDED TO THE CUSTOMER FOR BREACH OF THIS WARRANTY. TEKTRONIX
AND ITS VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR
CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS
ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.

TLA7PG2 Pattern Generator Module Service Manual i
Table of Contents
General Safety Summary xi...................................
Service Safety Summary xiii....................................
Preface xv...................................................
Manual Structure xv................................................
Manual Conventions xvi..............................................
Related Manuals xvi.................................................
Contacting Tektronix xvii.............................................
Introduction xix..............................................
Strategy for Servicing xix.............................................
Tektronix Service Offerings xx........................................
Specifications
Product Description 1--1..............................................
Pattern Generator Module Characteristics 1--2.............................
Probe Characteristics 1--6.............................................
Pattern Generator Module Timing Diagrams 1--25...........................
P6470 and P6471 Probe Environmental Characteristics 1--27..................
Certifications 1--28...................................................
Operating Information
Installation 2--1.....................................................
Operating Environment 2--2...........................................
Applying and Interrupting Power 2--2....................................
Diagnostics 2--3.....................................................
Menus 2--5.........................................................
Online Help 2--5.....................................................
Setups 2--6.........................................................
P6475 Power On/Off Procedure 2--8.....................................
Merging Pattern Generator Modules 2--10.................................
Importing and Exporting Data 2--10......................................
Pattern Editing 2--11..................................................
Theory of Operation
Module Overview 3--1................................................
Probe Overview 3--4.................................................
Performance Verification
Verification Summary 4--1.............................................
Equipment Required 4--5..............................................
P6475 Variable Probe Test Record 4--6...................................
Setup Procedures 4--7................................................
Functional Verification Procedures 4--13...........................
TLA7PG2 Functional Verification Procedures 4--14.........................

Table of Contents
ii TLA7PG2 Pattern Generator Module Service Manual
P6470 Functional Verification Procedures 4--40.............................
P6471 Functional Verification Procedures 4--51.............................
P6472 Functional Verification Procedures 4--58.............................
P6473 Functional Verification Procedures 4--66.............................
P6474 Functional Verification Procedures 4--76.............................
P6475 Functional Verification Procedures 4--87.............................
Performance Verification Procedures 4--104.........................
TLA7PG2 Maximum Operating Frequency 4--105............................
P6475 Delay Accuracy Check 4--111......................................
Adjustment Procedures
Maintenance
Preparation 6--1.....................................................
Preventing ESD 6--1.................................................
Inspection and Cleaning 6--2...........................................
Removal and Installation Procedures 6--5.........................
Preparation 6--5.....................................................
Removal Procedures for the Pattern Generator 6--7.........................
Installation Procedures for Pattern Generator 6--12..........................
Removal Procedures for Standard Probes 6--13.............................
Removal Procedures for P6475 Variable Probe 6--19.........................
Troubleshooting 6--25...........................................
LEDs 6--25..........................................................
Troubleshooting Procedures 6--25........................................
Diagnostics 6--27.....................................................
Restoring and Reinstalling Software 6--29..........................
Restoring Software 6--29...............................................
Reinstalling Pattern Generator Application Software 6--30....................
Uninstalling Pattern Generator Application Software 6--30....................
Updating Module Firmware 6--31........................................
Repackaging 6--35..............................................
Repackaging Instructions 6--35..........................................
Options and Accessories
Pattern Generator Options 7--1.........................................
P6475 Options 7--1..................................................
Pattern Generator and Probe Optional Accessories 7--2......................
Pattern Generator Standard Accessories 7--2..............................
Probe Options 7--2...................................................
Probe Standard Accessories 7--2........................................
Replaceable Electrical Parts
Diagrams
Replaceable Mechanical Parts
Parts Ordering Information 10--1.........................................
Using the Replaceable Parts List 10--2....................................

Table of Contents
TLA7PG2 Pattern Generator Module Service Manual iii
List of Figures
Figure 1--1: Clock and strobe timing diagram 1--25..................
Figure 1--2: P6470, P6472, P6473, and P6474 inhibit
timing diagram 1--25............................................
Figure 1--3: P6470, P6472, P6473, and P6474 external
event for inhibit timing diagram 1--26.............................
Figure 1--4: External event for jump timing diagram 1--26............
Figure 1--5: External event for half channel advance
timing diagram 1--26............................................
Figure 1--6: External event for full channel advance
timing diagram 1--27............................................
Figure 1--7: External event for delay to data output for
advance diagram 1--27..........................................
Figure 4--1: Termination Board 4--12..............................
Figure 4--2: External Clock Input connections using a
P6470, P6471, P6472, P6473, or P6474 4--15........................
Figure 4--3: External Clock Input connections using a P6475 4--16.....
Figure 4--4: Internal Clock Frequency connections using
a P6470, P6471, P6472, P6473, or P6474 4--19.......................
Figure 4--5: Internal Clock Frequency connection using
a P6475 4--20..................................................
Figure 4--6: Merge operation connections using P6470,
P6471, P6472, P6473, or P6474 probes 4--24........................
Figure 4--7: Merge operation connections using P6475 probe 4--25.....
Figure 4--8: Merged and unmerged modules in the
Merge Modules window 4--27....................................
Figure 4--9: Timing Chart 4--28...................................
Figure 4--10: TLA7PG2 Deskew function connections
using a P6470, P6471, P6472. P6473, or P6474 4--29..................
Figure 4--11: TLA7PG2 Deskew function connections
using a P6475 probe 4--30........................................
Figure 4--12: TLA7PG2 Inhibit function (by data) connections
using a P6470, P6473, or P6474 probe 4--33.........................
Figure 4--13: TLA7PG2 Inhibit function (by data) connections
using a P6475 probe 4--33........................................

Table of Contents
iv TLA7PG2 Pattern Generator Module Service Manual
Figure 4--14: Inhibit function (by Event) connections
using a P6470, P6473, or P6474 4--36..............................
Figure 4--15: Inhibit function (by Event) connections
using a P6475 4--37.............................................
Figure 4--16: Internal Clock Frequency connections 4--41.............
Figure 4--17: Sequence and Data Output connections 4--44............
Figure 4--18: P6470 Sequence and Data sample waveforms 4--46.......
Figure 4--19: P6470 Sequence and Data strobed
sample waveforms 4--47.........................................
Figure 4--20: Inhibit function connections 4--48.....................
Figure 4--21: Internal Clock Frequency connections 4--51.............
Figure 4--22: Sequence and Data Output connections 4--54............
Figure 4--23: P6471 Sequence and Data sample waveforms 4--56.......
Figure 4--24: P6471 Sequence and Data strobed
sample waveforms 4--57.........................................
Figure 4--25: Internal Clock Frequency connections 4--59.............
Figure 4--26: Sequence and Data Output connections 4--62............
Figure 4--27: P6472 Sequence and Data sample waveforms 4--64.......
Figure 4--28: P6472 Sequence and Data strobed
sample waveforms 4--65.........................................
Figure 4--29: Internal Clock Frequency connections 4--66.............
Figure 4--30: Sequence and Data Output connections 4--69............
Figure 4--31: P6473 Sequence and Data sample waveforms 4--71.......
Figure 4--32: P6473 Sequence and Data strobed
sample waveforms 4--72.........................................
Figure 4--33: Inhibit function connections 4--74.....................
Figure 4--34: Internal Clock Frequency connections 4--77.............
Figure 4--35: Sequence and Data Output connections 4--80............
Figure 4--36: P6474 Sequence and Data sample waveforms 4--82.......
Figure 4--37: P6474 Sequence and Data strobed
sample waveforms 4--83.........................................
Figure 4--38: Inhibit function connections 4--85.....................
Figure 4--39: Internal Clock Frequency connections 4--88.............
Figure 4--40: Sequence and Data Output connections 4--90............
Figure 4--41: P6475 Sequence and Data sample waveforms 4--92.......
Figure 4--42: P6475 Sequence and Data strobed
sample waveforms 4--93.........................................
Figure 4--43: Inhibit function connections 4--94.....................

Table of Contents
TLA7PG2 Pattern Generator Module Service Manual v
Figure 4--44: P6475 Data Output and CH6 Output
Mode connections 4--97..........................................
Figure 4--45: NRZ data format 4--99...............................
Figure 4--46: RZ data format 4--99................................
Figure 4--47: R1 data format 4--100.................................
Figure 4--48: OR logic 4--101......................................
Figure 4--49: AND logic 4--101.....................................
Figure 4--50: CH6 AND (NOT CH7) 4--102..........................
Figure 4--51: CH6 OR (NOT CH7 ) 4--103...........................
Figure 4--52: Maximum Operating Frequency Connections
using P6470, P6471, P6472, P6473, or P6474 (Example) 4--106..........
Figure 4--53: Maximum Operating Frequency Connections
using a P6475 probe 4--107........................................
Figure 4--54: Timing chart for the Maximum Operating
Frequency check 4--109..........................................
Figure 4--55: Delay Accuracy connections 4--111......................
Figure 6--1: Right cover 6--7.....................................
Figure 6--2: A50 PG board 6--8..................................
Figure 6--3: J1960 cable housing latch 6--9.........................
Figure 6--4: A20 and A50 fuse locations 6--10........................
Figure 6--5: Ejector assembly 6--11................................
Figure 6--6: Cushioning pad 6--12.................................
Figure 6--7: Removing the standard probe cover 6--13................
Figure 6--8: P6470 series termination resistors 6--14..................
Figure 6--9: P6474 series termination resistors 6--15..................
Figure 6--10: P6472 PECL and LVPECL jumper position 6--15........
Figure 6--11: Fuse location for the P6470 and P6471 6--16.............
Figure 6--12: Removing the standard probe fan 6--18.................
Figure 6--13: Removing the P6475 cover 6--19.......................
Figure 6--14: Removing the P6475 fans 6--20........................
Figure 6--15: Disconnect power supply cables 6--21..................
Figure 6--16: Remove the power supply board 6--22..................
Figure 6--17: Troubleshooting procedure 6--26......................
Figure 6--18: Flash programming pins 6--31........................

Table of Contents
vi TLA7PG2 Pattern Generator Module Service Manual
Figure 9--1: Function block diagram for the TLA7PG2
Pattern Generator 9--2.........................................
Figure 9--2: Function block diagram for P6470, P6471,
P6472, P6473, and P6474 probes 9--3.............................
Figure 9--3: Function block diagram for P6475 Probe 9--4............
Figure 9--4: Cable diagram for the TLA7PG2
pattern generator 9--5..........................................
Figure 9--5: Cable diagram for the P6475 probe 9--6................
Figure 10--1: TLA7PG2 chassis 10--6..............................
Figure 10--2: TLA7PG2 cables and fuses 10--8......................
Figure 10--3: P6470 probe chassis 10--10............................
Figure 10--4: P6471 probe chassis 10--12............................
Figure 10--5: P6472, P6473, and P6474 probe chassis 10--14............
Figure 10--6: P6475 variable probe chassis 10--16.....................
Figure 10--7: Cables for standard probes 10--17......................
Figure 10--8: Cables for P6475 variable probe 10--18..................

Table of Contents
TLA7PG2 Pattern Generator Module Service Manual vii
List of Tables
Table 1--1: PG module electrical characteristics,
operational mode 1--2.........................................
Table 1--2: PG module electrical characteristics,
output pattern 1--2............................................
Table 1--3: PG module, internal clock 1--3........................
Table 1--4: PG module, external clock input 1--3...................
Table 1--5: PG module, event processing 1--3......................
Table 1--6: PG module, intermodule interactions 1--4...............
Table 1--7: PG module, merged PG modules 1--4..................
Table 1--8: PG module, mechanical 1--4...........................
Table 1--9: P6470 TTL/CMOS probe 1--6.........................
Table 1--10: P6471 ECL probe 1--9..............................
Table 1--11: P6472 PECL/LVPECL probe 1--11.....................
Table 1--12: P6473 LVDS probe 1--12..............................
Table 1--13: P6474 LVCMOS probe 1--15..........................
Table 1--14: P6475 Variable probe 1--18...........................
Table 1--15: Power Supply (P6475 only) 1--23.......................
Table 1--16: Atmospherics 1--23..................................
Table 1--17: Dynamics characteristics (P6470, P6471,
P6472, P6473, and P6474) 1--23..................................
Table 1--18: Dynamics characteristics (P6475) 1--24..................
Table 1--19: Probe cables 1--24...................................
Table1--20:Twistedleadset 1--24...............................
Table 1--21: Certifications and compliances for P6475 1--25...........
Table 1--22: P6470 TTL/CMOS probe and P6471 ECL probe 1--27....
Table 1--23: Certifications and compliances 1--28....................
Table 4--1: Pattern generator module verification procedures 4--2.....
Table 4--2: Test equipment 4--5..................................
Table 4--3: Front panel indicators 4--8............................
Table 4--4: Extended Diagnostic test Items and
faulty component 4--10.........................................
T a b l e 4 -- 5 : D e l a y 4 -- 1 1 2..........................................
Table 6--1: Tools required for part removal 6--6....................
Table 6--2: P6470 series termination resistors 6--14..................

Table of Contents
viii TLA7PG2 Pattern Generator Module Service Manual
Table 6--3: P6472, P6473, P6474, and P6475 fuse descriptions 6--16....
Table 6--4: P6470 and P6471 fuse descriptions 6--17.................
T a b l e 6 -- 5 : L E D s 6 -- 2 5..........................................
Table 6--6: Restoring software 6--29..............................
Table 7--1: Optional accessories 7--2..............................
Table 7--2: Pattern generator standard accessories 7--2..............
Table 7--3: Probe standard accessories 7--3........................

TLA7PG2 Pattern Generator Module Service Manual ix
General Safety Summary
Review the following safety precautions to avoid injury and prevent damage to
this product or any products connected to it. To avoid potential hazards, use this
product only as specified.
Only qualified personnel should perform service procedures.
While using this product, you may need to access other parts of the system. Read
the General Safety Summary in other system manuals for warnings and cautions
related to operating the system.
Use Proper Power Cord. Use only the power cord specified for this product and
certified for the country of use.
Ground the Product. These products (P6470, P6471, P6472, P6473, and P6474)
are indirectly grounded through the grounding conductor of the mainframe
power cord. The P6475 is directly grounded through the grounding conductor of
the probe power cord. To avoid electric shock, the grounding conductor must be
connected to earth ground. Before making connections to the input or output
terminals of the product, ensure that the product is properly grounded.
Observe All Terminal Ratings. To avoid fire or shock hazard, observe all ratings
and markings on the product. Consult the product manual for further ratings
information before making connections to the product.
Do Not Operate Without Covers. Do not operate this product with covers or panels
removed.
Use Proper Fuse. Use only the fuse type and rating specified for this product.
Avoid Exposed Circuitry. Do not touch exposed connections and components
when power is present.
Do Not Operate With Suspected Failures. If you suspect there is damage to this
product, have it inspected by qualified service personnel.
Do Not Operate in Wet/Damp Conditions.
Do Not Operate in an Explosive Atmosphere.
Keep Product Surfaces Clean and Dry.
Provide Proper Ventilation. Refer to the manual’s installation instructions for
details on installing the product so it has proper ventilation.
ToAvoidFireor
Personal Injury

General Safety Summary
xTLA7PG2 Pattern Generator Module Service Manual
Terms in this Manual. These terms may appear in this manual:
WARNING. Warning statements identify conditions or practices that could result
in injury or loss of life.
CAUTION. Caution statements identify conditions or practices that could result in
damage to this product or other property.
Terms on the Product. These terms may appear on the product:
DANGER indicates an injury hazard immediately accessible as you read the
marking.
WARNING indicates an injury hazard not immediately accessible as you read the
marking.
CAUTION indicates a hazard to property including the product.
Symbols on the Product. The following symbols may appear on the product:
CAUTION
Refer to Manual
Protective Ground
(Earth) Terminal
Symbols and Terms

TLA7PG2 Pattern Generator Module Service Manual xi
Service Safety Summary
Only qualified personnel should perform service procedures. Read this Service
Safety Summary and the General Safety Summary before performing any service
procedures.
Do Not Service Alone. Do not perform internal service or adjustments of this
product unless another person capable of rendering first aid and resuscitation is
present.
Disconnect Power. To avoid electric shock, switch off the instrument power, then
disconnect the power cord from the mains power.
Use Care When Servicing With Power On. Dangerous voltages or currents may
exist in this product. Disconnect power, remove battery (if applicable), and
disconnect test leads before removing protective panels, soldering, or replacing
components.
To avoid electric shock, do not touch exposed connections.

Service Safety Summary
xii TLA7PG2 Pattern Generator Module Service Manual

TLA7PG2 Pattern Generator Module Service Manual xiii
Preface
This is the service manual for the TLA7PG2 Pattern Generator. The manual
contains information needed to service the pattern generator to the module level.
Manual Structure
The following lists contains a brief description of each manual section.
HThe Specifications contains a description and a list of the characteristics of
the pattern generator and pattern generator probes.
HThe Operating Information includes general information and operating
instructions at the level needed to safely power on and service the pattern
generator.
HThe Theory of Operation contains circuit descriptions that support general
service to the module level.
HThe Performance Verification contains procedures to verify the functional
operation of the pattern generator and modules as well as procedures to
verify the performance to advertised specifications.
HThe Adjustment Procedures normally lists procedures to adjust the instru-
ment to meet advertised specifications. At this printing, there are no
adjustment procedures required for the pattern generator module.
HThe Maintenance contains information and procedures for performing
preventive and corrective maintenance of the pattern generator module.
These instructions include cleaning and fault isolation to the module.
HThe Options contains information about options and accessories that are
available for the instrument.
HThe Replaceable Electrical Parts contains a statement referring you to the
Mechanical Parts List, where both electrical and mechanical parts are listed.
HThe Diagrams contains block diagrams and cabling diagrams that are useful
in isolating failed components.
HThe Replaceable Mechanical Parts includes a table of all replaceable parts,
their descriptions, and their Tektronix part numbers.

Preface
xiv TLA7PG2 Pattern Generator Module Service Manual
Manual Conventions
This manual uses certain conventions that you should become familiar with
before doing service.
Some sections of the manual contain procedures for you to perform. To keep
these instructions clear and consistent, this manual uses the following conven-
tions:
HNames of front-panel controls and menus appear in the same case (initial
capitals, all uppercase, and so on.) in the manual as they appear on the
TLA7PG2 Pattern Generator front panel and menus.
HInstruction steps are numbered, unless there is only one step.
HAn arrow placed after a menu title directs you to access the indicated
submenu. For example, System →System Configuration is directing you to
select the System menu and then select the submenu named System
Configuration.
Related Manuals
Other documentation for the TLA7PG2 Pattern Generator include:
HThe Tektronix Logic Analyzer Family User Manual contains specifications
and information on how to use the TLA7PG2 Pattern Generator.
HA series of probe manuals that provide information for using the probes the
the TLA7PG2 Pattern Generator.

Preface
TLA7PG2 Pattern Generator Module Service Manual xv
Contacting Tektronix
Phone [phone]*
Address Tektronix, Inc.
Department or name (if known)
14200 SW Karl Braun Drive
P.O. Box 500
Beaverton, OR 97077
USA
Web site www.tektronix.com
Sales support 1-800-833-9200, select option 1*
Service support 1-800-833-9200, select option 2*
Technical support Email: [e-mail]
1-800-833-9200, select option 3*
1-503-627-2400
6:00 a.m. -- 5:00 p.m. Pacific time
*This phone number is toll free in North America. After office hours, please leave a
voice mail message.
Outside North America, contact a Tektronix sales office or distributor; see the
Tektronix web site for a list of offices.